Khalid Al Rumaihi, Investcorp's managing director, told Bloomberg TV that the firm may raise as much as $500m for a new fund to invest in US real-estate debt. 'Real estate debt, whether secondary or on an origination basis, is going to be very attractive,' Al Rumaihi said. The new mezzanine fund would follow the $1bn pool it announced in September to acquire whole loans, mezzanine loans and mortgage securities backed by commercial and residential real-estate assets in the US which according to al-Rumaihi is 'about 20% invested'.